high performance headspace sample vial for spme

SPME Technique for Analyzing Headspace Volatiles in Fish Miso,

Optimization of the SPME technique. The fiber of the SPME device (Supelco, Bellefonte, PA, USA) was inserted into the headspace of a 22-ml glass vial with a polytetrafluoroethylene/silicone liner contain-ing the sample and sealed tightly with an aluminum cap

Determination of Benzene and Phenol in Body Fluids by Headspace Solid-Phase Microextraction （SPME

present headspace SPME and a Carboxen / PDMS fiber （Table 1）. Adding NaCl to the whole blood samples showed the highest efficiency of extraction for benzene ; Na 2SO 4 showed the highest efficiency of extraction for phenol, and

(PDF) Optimization of Headspace Sampling Using Solid-Phase

Volatiles are important flavor compounds of fruit juices and beverages. In this study, a headspace Solid-phase microextraction (SPME) gas chromatography-mass spectrometry (GC-MS) was used to analyze the volatile components in starfruit juices.

Qualification of Headspace High Performance Septa by

Figure 2. GC/MS chromatographic comparison of vial blank with different PTFE/silicone headspace septa and High Performance septum. Vials were equilibrated at 300 C for 30 min. By using High Performance septa, the vial blank chromatogram clearly shows a

Vacuum Assisted Headspace Solid-phase Microextraction: A

The performance of vacuum-assisted headspace solid-phase microextraction (Vac-HS-SPME) was compared to regular headspace solid-phase microextraction (HS-SPME) for the analysis of extra-virgin olive oil. Vac-HS-SPME proved beneficial in particular for

Problems Caused by Moisture in Gas Chromatographic Analysis of Headspace SPME Samples

2018/10/25 · Volatile amines are usually problematic compounds in sampling, sample pretreatment and gas chromatographic analysis due to their chemical characteristics (polarity, basicity and reactivity). Headspace solid-phase microextraction (SPME) Arrow sampling of aqueous samples were proven to be complicated since moisture in the headspace was also sorbed into the SPME sorbent and resulted in

Volatile sampling by headspace techniques - ScienceDirect

2015/9/1 · Rivas-Cañedo et al. compared the performance of P&T and SPME for sampling of volatiles in ground beef subjected to high-pressure processing (HPP) and further three-day refrigerated storage. Despite the volatile profiles of control samples (neither stored nor pressurized) provided by both techniques being comparable, they turned out to be completely different for stored untreated and HPP samples.

high performance headspace gas chromatography for sale

Customized gc headspace vials with flat bottom for gas. 2021 - 07 - 06. 20ml Headspace Vials for Gas Chromatography on Sale 2020/09/09 · Aijiren provide 20ml Headspace Vials for more than 10 years,the Headspace Vials provided by Aijiren have been tested with high quality and have been well received by customers. 1.5mL 8. Inquiry.

AOC-5000 Liquid, Headspace and SPME GC Injection System (

Vial size up to 600 1ml micro vials 294 2ml standard vials 96 10ml or 20ml vials 4 deepwell microplates 6 standard microplates Syringe cleaning Wash Station for 2 different solvents Headspace mode 294 2ml standard vials, 96 10ml or 20ml

Matrix effect on the performance of headspace solid phase

2013/11/1 · Glass vials (20 mL) were used to expose the fiber to the sample headspace for all the tests in duplicate. The vial caps had a flexible silicon/PTFE septum that allowed introducing the SPME fiber holder for sampling.

ITEX Dynamic Headspace Powerful Sample Enrichment for GC

space, SPME and ITEX-sampling within the same sequence on one system ITEX Dynamic Headspace high sensitivity, no hassle Typical application areas include: (see pages 6-9 for more details): – Drinking and waste water – Food, additives, flavors ITEX (In

Solid-phase microextraction: a powerful sample preparation tool

Solid-phase microextraction 235 on gas–liquid or liquid–liquid partitioning.12 Kinetics of the SPME extraction process depend on a number of parameters (e.g. film thickness, agitation of the sample); sampling times are typically in the order of a few minutes.

(PDF) Headspace SPME method development for the analysis of volatile polar residual solvents by

For 10 ml headspace vials, the optimum headspace volume was found to be 3 ml. The total volatile organic content in the sample also has an important effect on method sensitivity and precision.

An Aijiren Guide to SPME Analysis

Aijiren offers high-quality products for SPME sample preparation An Aijiren Guide to SPME Analysis; DE.222337963 Solid Phase Microextraction (SPME) is a fast, solvent-less sample extraction technique.

Factors Affecting Analysis of Static Headspace Sampling in High Performance

The sample refers to the original sample placed in the headspace vial, not the volatiles entering the gas chromatograph. Therefore, the nature of the sample in the entire headspace vial should be considered. 1. Gas sample: For gas samples, there is only the gas